128 CALIFORNIA ACADEMY OF SCIENCES. 



transverse blotches by a pale subinarginal band, parallel 

 with the lateral margin of the abdomen; median trans- 

 verse blotches paler fuscous; transverse bands of seg- 

 ments 1 to 6 widely separated by uncolored sutural 

 bands; last segment rounding, with a fringe of hairs 

 on the posterior margin, dark transverse blotch nar- 

 rowed distinctly in the middle, ventral transverse 

 bands distinctly fuscous; many hairs arranged nearly 

 in two definite series in each segment. 



Male. Body, length 1. mm., width .59 mm.; head, 

 length .25 mm., width .5 mm. 



Menopon persignatum n. sp. (Plate IX, fig. 1). 



Many specimens from the California Jay, Aphelocoma 

 californica (2 specimens, Mountain View, California). 

 Resembling in general shape and characters the three or 

 four species of Menopon described by Nitzsch and Piaget 

 from the European Jays. 



Description of the female. Body, length 2.03 mm., 

 width .75 mm.; long, narrow; pale fuscous with dis- 

 tinct black ocular blotches, blackish lines in the 

 thorax, and broad dark fuscous transverse abdominal 

 bands. 



Head, length .34 mm., width .56 mm,; front broadly 

 but slightly angularly rounding; no hairs on the frontal 

 margin, one long and two shorter hairs on the lateral 

 margins of forehead, besides two long hairs just in front 

 of the ocular emargination, which is nearly filled by 

 the large eye which is slightly emarginated and bears 

 a short prickle; ocular fringe with only a few hairs of 

 uneven length; temples produced, rather narrowly 

 rounded, with five long hairs and several short hairs 

 and spines on the margin ; occipital margin straight in 

 its middle portion ; one long and one short hair near 



